package com.chaos.framework.starter.config;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalTimeSerializer;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;

/**
 * @author Jacky
 * @date 2020/11/14 17:39
 */
@Configuration
public class JacksonConfig {

    private static final String DATE_FORMAT = "yyyy-MM-dd";
    private static final String DATETIME_FORMAT = "yyyy-MM-dd HH:mm:ss";
    private static final String TIME_FORMAT = "HH:mm:ss";

    @Bean
    public Jackson2ObjectMapperBuilder jackson2ObjectMapperBuilder() {
        return new Jackson2ObjectMapperBuilder()
                .serializerByType(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(DATETIME_FORMAT)))
                .serializerByType(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ofPattern(DATE_FORMAT)))
                .serializerByType(LocalTime.class, new LocalTimeSerializer(DateTimeFormatter.ofPattern(TIME_FORMAT)))
                .deserializerByType(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(DATETIME_FORMAT)))
                .deserializerByType(LocalDate.class, new LocalDateDeserializer(DateTimeFormatter.ofPattern(DATE_FORMAT)))
                .deserializerByType(LocalTime.class, new LocalTimeDeserializer(DateTimeFormatter.ofPattern(TIME_FORMAT)));
    }


    @Bean
    @Primary
    @ConditionalOnMissingBean(ObjectMapper.class)
    public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
        ObjectMapper objectMapper = builder.createXmlMapper(false).build();

        // 通过该方法对mapper对象进行设置，所有序列化的对象都将按改规则进行系列化
        // Include.Include.ALWAYS 默认
        // Include.NON_DEFAULT 属性为默认值不序列化
        // Include.NON_EMPTY 属性为 空（""） 或者为 NULL 都不序列化，则返回的json是没有这个字段的。这样对移动端会更省流量
        // Include.NON_NULL 属性为NULL 不序列化
        objectMapper.setSerializationInclusion(JsonInclude.Include.NON_EMPTY);
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        // 允许出现特殊字符和转义符
        objectMapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_CONTROL_CHARS, true);
        // 允许出现单引号
        objectMapper.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);

        SimpleModule simpleModule = new SimpleModule();
        simpleModule.addSerializer(Long.class, ToStringSerializer.instance);
        simpleModule.addSerializer(Long.TYPE, ToStringSerializer.instance);
        simpleModule.addSerializer(Integer.class, ToStringSerializer.instance);
        simpleModule.addSerializer(Integer.TYPE, ToStringSerializer.instance);
        simpleModule.addSerializer(Float.class, ToStringSerializer.instance);
        simpleModule.addSerializer(Float.TYPE, ToStringSerializer.instance);
        simpleModule.addSerializer(Double.class, ToStringSerializer.instance);
        simpleModule.addSerializer(Double.TYPE, ToStringSerializer.instance);
        objectMapper.registerModule(simpleModule);

        return objectMapper;
    }

}
